easy Set 81 Form Exercise

__ + 12 = 20

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Answer: 8

SubType
complement-of-100
Total
20
KnownAddend
12
Difficulty
normal

Find the complement to 20: 4 + __ = 20

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Answer: 16

SubType
complement-of-100
Total
20
KnownAddend
4
Difficulty
normal

Find the complement to 100: 95 + __ = 100

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Answer: 5

SubType
complement-of-100
Total
100
KnownAddend
95
Difficulty
normal

__ + 3 = 20

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Answer: 17

SubType
complement-of-100
Total
20
KnownAddend
3
Difficulty
normal

__ + 30 = 100

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Answer: 70

SubType
complement-of-100
Total
100
KnownAddend
30
Difficulty
normal

__ + 49 = 100

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Answer: 51

SubType
complement-of-100
Total
100
KnownAddend
49
Difficulty
normal

What number + 57 = 100?

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Answer: 43

SubType
complement-of-100
Total
100
KnownAddend
57
Difficulty
normal

Find the complement to 10: 4 + __ = 10

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Answer: 6

SubType
complement-of-100
Total
10
KnownAddend
4
Difficulty
normal

Find the complement to 20: 8 + __ = 20

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Answer: 12

SubType
complement-of-100
Total
20
KnownAddend
8
Difficulty
normal

Find the complement to 100: 24 + __ = 100

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Answer: 76

SubType
complement-of-100
Total
100
KnownAddend
24
Difficulty
normal

What number + 3 = 10?

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Answer: 7

SubType
complement-of-100
Total
10
KnownAddend
3
Difficulty
normal

Find the complement to 20: 12 + __ = 20

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Answer: 8

SubType
complement-of-100
Total
20
KnownAddend
12
Difficulty
normal

__ + 10 = 100

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Answer: 90

SubType
complement-of-100
Total
100
KnownAddend
10
Difficulty
normal

__ + 6 = 10

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Answer: 4

SubType
complement-of-100
Total
10
KnownAddend
6
Difficulty
normal

__ + 2 = 10

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Answer: 8

SubType
complement-of-100
Total
10
KnownAddend
2
Difficulty
normal

What number + 88 = 100?

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Answer: 12

SubType
complement-of-100
Total
100
KnownAddend
88
Difficulty
normal

__ + 47 = 100

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Answer: 53

SubType
complement-of-100
Total
100
KnownAddend
47
Difficulty
normal

What number + 43 = 100?

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Answer: 57

SubType
complement-of-100
Total
100
KnownAddend
43
Difficulty
normal

Find the complement to 10: 3 + __ = 10

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Answer: 7

SubType
complement-of-100
Total
10
KnownAddend
3
Difficulty
normal